So as well as a improvised ice bucket, the Cordura's abrasion resistance protects the dry bag material of the main horse shoe bag in a spill. Nicely thought out evolution of your original design. If the ice bucket part of the system gets torn up after a bad pavement slide or something, will you allow owner's of the system to just purchase that part without the horse shoe bag?

Great question. It'd be a whole lot cooler if the rig was available alacarte-especially after damage from a tumble.